Home / 121,272.07-166,143.55-116,726.73

Finding the Fourth Proportional to 121,272.07, 166,143.55 and 116,726.73

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Solution

The fourth proportional to 121,272.07, 166,143.55 and 116,726.73 is: 159,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,272.07 : 166,143.55 = 116,726.73 : x
  2. Step 2: Convert to fraction form
    121,272.07/166,143.55 = 116,726.73/x
  3. Step 3: Cross multiply
    121,272.07x = 166,143.55 × 116,726.73
  4. Step 4: Simplify right side
    121,272.07x = 19,393,392,594.92
  5. Step 5: Solve for x
    x = 19,393,392,594.92/121,272.07
  6. Step 6: Final answer
    x = 159,916.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.